Yes, Jasem. These are both necessary steps. The autoguiding cable must be connected before booting up the Astrotrac or it won’t receive guide signals. Also, for the master-slave to work correctly, dec connection should be made after RA drive is powered up. Or both could compete to be the RA drive.

Other issues: occasional serial read error. Most likely reason is inadequate power to the mount or WiFi signal interference.

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